/*
* #%L
* Common package for I/O and related utilities
* %%
* Copyright (C) 2005 - 2015 Open Microscopy Environment:
* - Board of Regents of the University of Wisconsin-Madison
* - Glencoe Software, Inc.
* - University of Dundee
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
* #L%
*/
package loci.common.utests;
import static org.testng.AssertJUnit.assertEquals;
import java.io.IOException;
import java.nio.ByteOrder;
import loci.common.IRandomAccess;
import loci.common.utests.providers.IRandomAccessProvider;
import loci.common.utests.providers.IRandomAccessProviderFactory;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Parameters;
import org.testng.annotations.Test;
/**
* Tests swapping the endianness of a loci.common.IRandomAccess.
*
* @see loci.common.IRandomAccess
*/
@Test(groups="readTests")
public class EndiannessTest {
private static final byte[] PAGE = new byte[] {
(byte) 0x0F, (byte) 0x0E, (byte) 0x0F, (byte) 0x0E,
(byte) 0x0F, (byte) 0x0E, (byte) 0x0F, (byte) 0x0E
};
private static final String MODE = "r";
private static final int BUFFER_SIZE = 4;
private IRandomAccess fileHandle;
@Parameters({"provider"})
@BeforeMethod
public void setUp(String provider) throws IOException {
IRandomAccessProviderFactory factory = new IRandomAccessProviderFactory();
IRandomAccessProvider instance = factory.getInstance(provider);
fileHandle = instance.createMock(PAGE, MODE, BUFFER_SIZE);
}
@Test
public void testLength() throws IOException {
assertEquals(8, fileHandle.length());
}
@Test
public void testSeekBigEndian() throws IOException {
fileHandle.seek(6);
assertEquals(3854, fileHandle.readShort());
}
@Test
public void testSeekLittleEndian() throws IOException {
fileHandle.setOrder(ByteOrder.LITTLE_ENDIAN);
fileHandle.seek(6);
assertEquals(3599, fileHandle.readShort());
}
@Test
public void testReadShortBigEndian() throws IOException {
assertEquals(3854, fileHandle.readShort());
}
@Test
public void testReadShortLittleEndian() throws IOException {
fileHandle.setOrder(ByteOrder.LITTLE_ENDIAN);
assertEquals(3599, fileHandle.readShort());
}
@Test
public void testReadIntBigEndian() throws IOException {
assertEquals(252579598, fileHandle.readInt());
}
@Test
public void testReadIntLittleEndian() throws IOException {
fileHandle.setOrder(ByteOrder.LITTLE_ENDIAN);
assertEquals(235867663, fileHandle.readInt());
}
@Test
public void testReadLongBigEndian() throws IOException {
assertEquals(1084821113299406606L, fileHandle.readLong());
}
@Test
public void testReadLongLittleEndian() throws IOException {
fileHandle.setOrder(ByteOrder.LITTLE_ENDIAN);
assertEquals(1013043899004816911L, fileHandle.readLong());
}
}